Carotene is a precursor to vitamin A. It is the most common form of vitamin A in the world. Excessive intake of vitamin A can lead to liver toxicity, but carotenoids do not produce this type of toxicity, so even if the skin is yellow, there is no need to worry about liver toxicity. Reduce or stop the intake of these foods, and the skin discoloration will subside and return to normal.

The orange is rich in carotene, short-term large intake, the human liver can not fully metabolize it, will make the blood carotene concentration is too high, it will be deposited in the skin tissue, so that the skin yellow, triggered by carotenemia. As long as you don't eat oranges, the symptoms of yellowing skin will gradually disappear on its own.

In the daily diet, there are many vegetables and fruits are easy to make people "change color", such as overconsumption of carrots, pumpkin, mango and papaya will make the skin yellow; short-term large intake of mulberry, will make people lips into a deep purple, appear similar to the appearance of poisoning. Fruit daily intake should be controlled between 200 grams to 400 grams, so that nutrition and health, if consumed after the obvious discomfort, should seek medical attention.